Document Type
Original Article
Subject Areas
Chemistry
Keywords
Antibacterial; Anti-inflammatory; ANTI-ALLERGIC ACTIVITIES
Abstract
2,4-Pyridinedicarbohydrazide 3 was used in synthesizing several new heterocyclic compounds with expected potential biological activity, via its reaction with various chemical reagents. A series of bis-(arylmethylidene)pyridine-2,4-dicarbohydrazides 4a-e were synthesized by condensation of 3 with various aldehydes. Further, replacement of the dicarbxylic acid functionality of 1 with five membered heterocycles, in the hope of obtaining additional pharmacological activity, encouraged us to synthesize some 2,4-bis-{pyrazolyl 5; pyrazolonyl 6; 1,3,4-oxadiazolyl 7, 9, 11, 14; 1,2,4-triazolyl 15 and triazolo[3,4-b][1,3,4]thiadiazinyl 17}pyridines.The structures of the synthesized products were identified by elemental analysis, MS, IR and 1H NMR spectroscopy. The synthesized compounds were screened for their in vitro growth inhibiting activity against different strains of bacteria and compared with the standard antibiotic (Chloramphenicol) at triplicate concentration (5, 2.5,1 μg/ml). Also, they were screend for their in vivo anti-inflammatory activity [% Inhibition of oedema and % inhibition of plasma prostaglandin (PGE2)] and anti-allergic activity (anti-histamine). Their toxicity (ALD50 mg kg−1 p.o.) and ulcerogenic (UD50 mg kg−1 i.p.) activities were measured and promising results were obtained.
How to Cite This Article
ABD EL-SALAM, OSAMA and ABDULLA, MOHAMED
(2008)
"SYNTHESIS, ANTIBACTERIAL, ANTI-INFLAMMATORY AND ANTI-ALLERGIC ACTIVITIES OF 2,4-PYRIDINEDICARBOHYDRAZIDE AND ITS RELATED DERIVATIVES,"
Al-Azhar Bulletin of Science: Vol. 19:
Iss.
2, Article 11.
DOI: https://doi.org/10.21608/absb.2008.10783